ipn: remove unused Backend interface

Only the macOS/iOS clients care about it still, so we'll move it
to their repo.

But keep a test that makes sure that LocalBackend continues to
implement it so we get an early warning sign before we break
macOS/iOS.

Change-Id: I56392b740fe55b4d28468b77124c821b5c46c22b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
pull/6549/head
Brad Fitzpatrick 2 years ago committed by Brad Fitzpatrick
parent 2e5d08ec4f
commit 06c4c47d46

@ -210,35 +210,3 @@ type Options struct {
// new node key without user interaction. // new node key without user interaction.
AuthKey string AuthKey string
} }
// Backend is the interface between Tailscale frontends
// (e.g. cmd/tailscale, iOS/MacOS/Windows GUIs) and the tailscale
// backend (e.g. cmd/tailscaled) running on the same machine.
// (It has nothing to do with the interface between the backends
// and the cloud control plane.)
type Backend interface {
// SetNotifyCallback sets the callback to be called on updates
// from the backend to the client.
SetNotifyCallback(func(Notify))
// Start starts or restarts the backend, typically when a
// frontend client connects.
Start(Options) error
// StartLoginInteractive requests to start a new interactive login
// flow. This should trigger a new BrowseToURL notification
// eventually.
StartLoginInteractive()
// Login logs in with an OAuth2 token.
Login(token *tailcfg.Oauth2Token)
// Logout terminates the current login session and stops the
// wireguard engine.
Logout()
// SetPrefs installs a new set of user preferences, including
// WantRunning. This may cause the wireguard engine to
// reconfigure or stop.
SetPrefs(*Prefs)
// RequestEngineStatus polls for an update from the wireguard
// engine. Only needed if you want to display byte
// counts. Connection events are emitted automatically without
// polling.
RequestEngineStatus()
}

@ -743,3 +743,39 @@ func TestPacketFilterPermitsUnlockedNodes(t *testing.T) {
} }
} }
// legacyBackend was the interface between Tailscale frontends
// (e.g. cmd/tailscale, iOS/MacOS/Windows GUIs) and the tailscale
// backend (e.g. cmd/tailscaled) running on the same machine.
// (It has nothing to do with the interface between the backends
// and the cloud control plane.)
type legacyBackend interface {
// SetNotifyCallback sets the callback to be called on updates
// from the backend to the client.
SetNotifyCallback(func(ipn.Notify))
// Start starts or restarts the backend, typically when a
// frontend client connects.
Start(ipn.Options) error
// StartLoginInteractive requests to start a new interactive login
// flow. This should trigger a new BrowseToURL notification
// eventually.
StartLoginInteractive()
// Login logs in with an OAuth2 token.
Login(token *tailcfg.Oauth2Token)
// Logout terminates the current login session and stops the
// wireguard engine.
Logout()
// SetPrefs installs a new set of user preferences, including
// WantRunning. This may cause the wireguard engine to
// reconfigure or stop.
SetPrefs(*ipn.Prefs)
// RequestEngineStatus polls for an update from the wireguard
// engine. Only needed if you want to display byte
// counts. Connection events are emitted automatically without
// polling.
RequestEngineStatus()
}
// Verify that LocalBackend still implements the legacyBackend interface
// for now, at least until the macOS and iOS clients move off of it.
var _ legacyBackend = (*LocalBackend)(nil)

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